213302909 has 8 divisors (see below), whose sum is σ = 223795200. Its totient is φ = 203036400.

The previous prime is 213302849. The next prime is 213302933. The reversal of 213302909 is 909203312.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 213302909 - 2⁸ = 213302653 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (213301909) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 54509 + ... + 58290.

It is an arithmetic number, because the mean of its divisors is an integer number (27974400).

Almost surely, 2^213302909 is an apocalyptic number.

It is an amenable number.

213302909 is a deficient number, since it is larger than the sum of its proper divisors (10492291).

213302909 is a wasteful number, since it uses less digits than its factorization.

213302909 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 112891.

The product of its (nonzero) digits is 2916, while the sum is 29.

The square root of 213302909 is about 14604.8933238145. The cubic root of 213302909 is about 597.4922265756.

The spelling of 213302909 in words is "two hundred thirteen million, three hundred two thousand, nine hundred nine".